package com.zhao.calendar;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
* @Description: 时间格式转换和处理类
 *
 *                获取系统默认时区：TimeZone.getDefault()
* @Author:       wuyh
* @CreateDate:   2018/6/26 19:21
* @Version:      1.0
*/
public class CalendarTime {
	private static int millisecond;
	private static int year;
	private static int month;
	private static int day;
	private static int hour;
	private static int minute;
	private static int second;
	private static int way;

	private static Date date;

	private static String strTimeZone;

	static int timeZoneInt;

	static String strDateFormat;

	private static Calendar calendar;

	public static String getStrTimeZone() {
		return strTimeZone;
	}


	public static int getYear() {
		return year;
	}

	public static int getMonth() {
		return month;
	}

	public static int getDay() {
		return day;
	}

	public static int getHour() {
		return hour;
	}

	public static int getMinute() {
		return minute;
	}

	public static int getSecond() {
		return second;
	}


	/***
	 * 获取系统时间的构造方
	 */
	public CalendarTime(Date date) {
		this.date=date;
		calendar=setDateToCalendar(date);
		year = calendar.get(Calendar.YEAR);
		month = calendar.get(Calendar.MONTH) + 1;
		day = calendar.get(Calendar.DAY_OF_MONTH);
		way = calendar.get(Calendar.DAY_OF_WEEK);
		hour = calendar.get(Calendar.HOUR_OF_DAY);
		minute = calendar.get(Calendar.MINUTE);
		second = calendar.get(Calendar.SECOND);
		millisecond = calendar.get(Calendar.MILLISECOND);
	}


	
	/***
	 * 这不是基姆拉尔森计算公式: W= (d+2*m+3*(m+1)/5+y+y/4-y/100+y/400) mod 7
	 * 对比许剑伟先生的寿星天文历，和刘国安先生的日梭万年历
	 * 经认证：基姆拉尔森计算公式 合时间不长， 1000年，时间过大过小是不准确
	 * 这里用CSDN网友推算出来的公式，可用1583年到5582年，年限越往前时，与许剑伟先生的寿星万年历有差误
	 * 源码地址：http://bbs.csdn.net/topics/70277519#new_post
	 * @return
	 */
	public static String GetWeek() {
		int y = year;
		int m = month;
		int d = day;
		//String week[] = new String[] { "星期1"  ,"星期2", "星期3", "星期4", "星期5", "星期6", "星期7"};
		String week[] = new String[] { "星期1"  ,"星期2", "星期3", "星期4", "星期5", "星期6", "星期7"};
		if (m < 3) {
			m += 12;
			--y;
		}
		int w = (d + 1 + 2 * m + 3 * (m + 1) / 5 + y + (y >> 2) - y / 100 + y / 400) % 7;

		return week[w];
	}

	/***
	 * 返回日期
	 * 
	 * @return
	 */
	public static String getDataString() {
		return year + ":" + month + ":" + day + ": ";
	}
	/***
	 * 返回时间
	 * 
	 * @return
	 */
	public static String getTimeString() {
		return hour + ":" + minute + ":" + second + ":" + millisecond + "毫秒";
	}
	/***
	 * 返回星期
	 * 
	 * @return
	 */
	public static String getWeekString() {
		return ":"+GetWeek();
	}

	/***
	 * 获取时区
	 * @return
	 */
	public static int getTimZoneInt() {

		String dateTime = formatDateByFormat(date, "yyyyMMddHHmmssZZZ");// 20171014201011+0800

		strDateFormat = formatDateByFormat(date, "Z");// +0800

		String str2 = strDateFormat.substring(1, 3);

		int j = Integer.valueOf(str2.substring(0));
		if (j > 0) {
			timeZoneInt = Integer.valueOf(str2);
		} else {
			timeZoneInt = Integer.valueOf(str2.substring(1));
		}

		String[] timeZoneChese = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "十一", "十二" };

		if (strDateFormat.contains("-")) {
			strTimeZone =   strDateFormat + " 东" + timeZoneChese[timeZoneInt - 1] + "区";
		} else {
			strTimeZone = strDateFormat + " 西" + timeZoneChese[timeZoneInt - 1] + "区";
		}
		return timeZoneInt;
	}


	/***
	 * 时间格式处理
	 * 
	 * @param date
	 * @param format
	 * @return
	 */
	public static String formatDateByFormat(Date date, String format) {
		String result = "";
		if (date != null) {
			try {
				SimpleDateFormat sdf = new SimpleDateFormat(format);
				result = sdf.format(date);
			} catch (Exception ex) {
				ex.printStackTrace();
			}
		}
		return result;
	}

	/***
	 * Calendar 转成 Date
	 * @param c
	 * @return
	 */
	public static Date setCalendarToDate(CalendarTime c) {
		String str = c.getYear() + "-" + c.getMonth() + "-" + c.getDay()+" "+c.getHour()+":"+c.getMinute()+":"+c.getSecond();
		DateFormat dateFormat1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		Date myDate1 = null;
		try {
			myDate1 = dateFormat1.parse(str);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return myDate1;
	}
	/***
	 * Date 转成 Calendar
	 * @param d
	 * @return
	 */
	public static Calendar setDateToCalendar(Date d) {
		
		Calendar calendar = Calendar.getInstance();
		calendar.setTimeInMillis(d.getTime());
		return calendar;
	}


}
